cover 1930, 2m, 4m South American Flight (C38 two, C39 two, Michel 438 two, 439 two), tied on two cacheted Zeppelin flight covers to the U.S., single 2m on one cover, balance on other, both covers have trivial cover scuff, stamps fine-very fine, Scott retail $1,400.00+, Michel DM3,800 photo ex